netdev - Re: [PATCH net-next 1/2] UDP tunnel encapsulation module for tunnelling different protocols like MPLS,IP,NSH etc.

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Date:   Tue, 8 Oct 2019 07:57:58 -0700
From:   Randy Dunlap <rdunlap@...radead.org>
To:     Martin Varghese <martinvarghesenokia@...il.com>,
        netdev@...r.kernel.org, davem@...emloft.net, corbet@....net,
        scott.drennan@...ia.com, jbenc@...hat.com,
        martin.varghese@...ia.com
Subject: Re: [PATCH net-next 1/2] UDP tunnel encapsulation module for
 tunnelling different protocols like MPLS,IP,NSH etc.

On 10/8/19 2:48 AM, Martin Varghese wrote:
> From: Martin <martin.varghese@...ia.com>
> 
> The Bareudp tunnel module provides a generic L3 encapsulation
> tunnelling module for tunnelling different protocols like MPLS,
> IP,NSH etc inside a UDP tunnel.
> 
> Signed-off-by: Martin Varghese <martinvarghesenokia@...il.com>
> ---
>  Documentation/networking/bareudp.txt |  23 +
>  drivers/net/Kconfig                  |  13 +
>  drivers/net/Makefile                 |   1 +
>  drivers/net/bareudp.c                | 930 +++++++++++++++++++++++++++++++++++
>  include/net/bareudp.h                |  19 +
>  include/uapi/linux/if_link.h         |  12 +
>  6 files changed, 998 insertions(+)
>  create mode 100644 Documentation/networking/bareudp.txt
>  create mode 100644 drivers/net/bareudp.c
>  create mode 100644 include/net/bareudp.h
> 
> diff --git a/Documentation/networking/bareudp.txt b/Documentation/networking/bareudp.txt
> new file mode 100644
> index 0000000..d2530e2
> --- /dev/null
> +++ b/Documentation/networking/bareudp.txt
> @@ -0,0 +1,23 @@
> +Bare UDP Tunnelling Module Documentation
> +========================================
> +
> +There are various L3 encapsulation standards using UDP being discussed to
> +leverage the UDP based load balancing capability of different networks.
> +MPLSoUDP (https://tools.ietf.org/html/rfc7510)is one among them.

add space after ')'.

> +
> +The Bareudp tunnel module provides a generic L3 encapsulation tunnelling
> +support for tunnelling different L3 protocols like MPLS, IP, NSH etc. inside
> +a UDP tunnel.
> +
> +Usage
> +------
> +
> +1. Device creation & deletion
> +
> +a. ip link add dev bareudp0 type bareudp dstport 6635 ethertype 0x8847
> +
> +This creates a bareudp tunnel device which tunnels L3 traffic with ethertype
> +0x8847 (MPLS traffic).The destination port of the UDP header will be set to 6635

add space after '.'.
add ending '.'.

> +The device will listen on UDP port 6635 to receive traffic.
> +
> +b. ip link delete bareudp0
> diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig
> index 48e209e..a389fac 100644
> --- a/drivers/net/Kconfig
> +++ b/drivers/net/Kconfig
> @@ -215,6 +215,19 @@ config GENEVE
>  	  To compile this driver as a module, choose M here: the module
>  	  will be called geneve.
>  
> +config BAREUDP
> +       tristate "Bare UDP  Encapsulation"

	  drop one space between UDP and Encapsulation.

> +       depends on INET && NET_UDP_TUNNEL
> +       depends on IPV6 || !IPV6
> +       select NET_IP_TUNNEL
> +       select GRO_CELLS
> +       help
> +          This adds a bare udp tunnel module for tunnelling different

		s/udp/UDP/

> +          kind of traffic like MPLS, IP, etc. inside a UDP tunnel.
> +
> +          To compile this driver as a module, choose M here: the module
> +          will be called bareudp.
> +
>  config GTP
>  	tristate "GPRS Tunneling Protocol datapath (GTP-U)"
>  	depends on INET


-- 
~Randy